With the launch of the App store, the applications that were to run
on the iOS platform for the phones needed to have the digital signatures
of the company, in other words had to come from official catalogues for
the App store. Now a way out of the limitations, some brilliant iPhone
users have gave birth to the processes of Unlocking and
Jailbreaking iPhones.

What is Unlocking iPhone

Now coming over to the first part of the topic, we look into the
Apple’s policy of controlling the carriers that the iPhone works with;
this is in a way of bringing in revenue for the company by tie-ups with
specific service providers which give connectivity to the devices.
And as the words suggest, lifting the control that Apple puts over
the selection of service providers is what unlocking is all about.
Although some of the services are specific to certain networks
exclusively, most of the other features work seamlessly over other
networks or service providers as well. This not only allows flexibility,
but also gives more control to the users and better coverage when it
comes to certain networks.

What is Jailbreaking iPhone

As told above, the number and kinds of applications that can be
run on an iPhone has one limitation that is it needs to be digitally
approved by Apple; in other words, they need to be coming off the
catalogues of the Apple’s App Store. But, behind the scenes, a lot of
applications never make it to the App Store; the reason being rejected
by Apple due to several of the underlying reasons.